(19)
(11) EP 0 251 735 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.02.1990 Bulletin 1990/06

(43) Date of publication A2:
07.01.1988 Bulletin 1988/01

(21) Application number: 87305720.2

(22) Date of filing: 26.06.1987
(51) International Patent Classification (IPC)4: B21D 31/04
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI NL SE

(30) Priority: 30.06.1986 AU 6644/86

(71) Applicant: WATERSHIP PTY. LTD.
North Richmond Victoria, 3121 (AU)

(72) Inventor:
  • Gaissmaier, Rudi
    Lyndoch South Australia 5351 (AU)

(74) Representative: Rooney, Paul Blaise et al
D.Young & Co. 10 Staple Inn
London WC1V 7RD
London WC1V 7RD (GB)


(56) References cited: : 
   
       


    (54) A process and machine for the formation of expanded mesh materials


    (57) A process and machine are provided for the formation of expanded mesh materials in which a slotted starting sheet is bent along at least one succession of alternate strand diagonals (1,2, 3, 4, 5; A, B, C, D), each strand (20) in any one diagonal being bent simultaneously in at least two positions in the same manner and to the same extent so that the strands (20) of the strand diagonal (1, 2, 3, 4, 5; A, B, C, D) being bent remain in substantially arallel planes during and after bending. A "strand" (20) is defined as the area of overlap between adjacent rows of slots (10) at each end of a respective slot (10) according to the slot pattern in the slotted starting sheet.







    Search report